Hi Guys!
I was doing some tests to learn how to use zita resampler and I got an
unexpected output. All the last positions of my output vector were 0 and I
don't know why.
I have copied the main files of zita resampler to my home directory. The
files were resampler.cc, resampler-tables.cc, vresampler.cc and their
respective headers. I have done this because I will need to modify the
source code to use it with double precision vectors.
Does anyone know what I am doing wrong?
I'm trying to do this to improve mod-DS1's performance.
https://github.com/portalmod/mod-distortion
I'm attaching my code.
greets
André
#include <iostream>
#include <fstream>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "resampler.h"
using namespace std;
typedef float sample_t;
int main(void)
{
cout << "OverSample Test" << endl;
const uint32_t samplerate = 44100, n_over = 2;
const uint32_t n_samples = 256;
sample_t *buffer, *buffer_over, freq_Hz = 1000;
buffer = (sample_t *) malloc(sizeof(sample_t) * n_samples);
buffer_over = (sample_t *) malloc(sizeof(sample_t) * n_samples * n_over);
//SinWave
for (uint32_t i = 0; i< n_samples ; i++)
{
buffer[i] = sin(2*M_PI*freq_Hz*i/samplerate);
}
for (uint32_t i = 0; i<n_samples; i++)
{
cout << "buffer[" << i << "] = " << buffer[i] << endl;
}
Resampler over;
over.setup(samplerate, n_over*samplerate, 1, 16);
over.inp_count = n_samples;
over.out_count = n_samples*n_over;
over.inp_data = buffer;
over.out_data = buffer_over;
over.process();
for (uint32_t i = 0; i< n_over*n_samples; i++)
{
cout << "buffer_over[" << i << "] = " << buffer_over[i] << endl;
}
return 0;
}
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